Ogikubo weather in September

In September, Ogikubo sees average daytime highs of 26°C and overnight lows near 20°C, with 204 mm of rain across 14.9 wet days and about 12.2 hours of daylight. It is the 3rd-warmest and 2nd-wettest month of the year here.

Highs ease over the month, from about 29°C in the first days to 24°C by the end. The sky is clear or mostly clear about 21% of the time in September, and the air most often feels muggy.

Daylight stretches from about 12 h 48 min at the start of September to 11 h 42 min by month's end. Set against the rest of the year, September is Ogikubo's 9th-clearest and 5th-windiest month. For the whole year in context, see Ogikubo's year-round climate.

Daytime high
26°
3rd warmest
Overnight low
20°
10th coldest
Rainfall
204 mm
14.9 wet days
Daylight
12 h 12 min
5:29 AM – 5:42 PM
Cloud cover
68%
9th clearest
Wind
9 km/h
5th windiest
Solar energy
3.6 kWh/m²
Travel score
5.5
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 29°C in the first days to 24°C by the end.

A typical September day in Ogikubo reaches about 26°C in the afternoon and slips back to 20°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 22°C and 30°C. Set against its neighbours, September runs about 4°C cooler than August and about 6°C warmer than October.

10°15°20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
12923
22923
32922
42922
52822
62822
72822
82822
92822
102821
112721
122721
132721
142721
152720
162620
172620
182620
192620
202619
212519
222519
232519
242518
252418
262418
272418
282418
292418
302417

How September really feels in Ogikubo

Once humidity and wind are folded in, September averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

September sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Ogikubo weather by month

How September compares with the rest of the year at a glance. September is the 3rd-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -0°697.52.59.91.9
Feb10° / 658.42.510.62.2
Mar13° / 12013.21.511.73.4
Apr18° / 12312.80.312.95.3
May22° / 14°13913.2013.96.1
Jun25° / 19°17715.4014.45.5
Jul29° / 23°18216.4014.24.6
Aug30° / 24°14215.5013.34.2
Sep26° / 20°20414.9012.25.5
Oct21° / 14°21513.7011.15.9
Nov16° / 9210.2010.15.0
Dec11° / 617.40.49.63.1

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 21% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 15% of September, with mostly cloudy or overcast conditions the remaining 64%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13862
23862
33763
43763
53763
63763
73763
83763
93763
103763
113664
123664
133565
143565
153565
163565
173466
183466
193466
203466
213466
223466
233565
243565
253565
263565
273664
283664
293763
303862

Chance of precipitation in September

Any precipitation

Ogikubo gets around 204 mm of rain over 14.9 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 50% and peaks near 51% on the wettest days.

0%20%40%60%151015202530
Rain chance (%)
150
250
349
449
549
649
749
850
950
1050
1150
1250
1350
1450
1550
1650
1751
1851
1951
2051
2151
2251
2351
2451
2551
2651
2751
2851
2951
3050

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

Most of September feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, September lands in the muggy band about 30% of days. Sticky, muggy-or-worse air turns up on roughly 59% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
102931517
2021032506
3021033496
4021133485
5031134474
6131234464
7141334453
8141535433
9151635413
10151735402
11161835382
12272034362
13272134341
14382334311
15392433291
164102632271
175112732241
186132830221
196143030200
207153129170
218173228150
229183327140
2310193426120
2410203525100
251121352390
261222362270
271323372160
281424372050
291525371940
301626371830

Wind in September

Winds average 9 km/h in September.

Across September, daily wind ranges from about 8 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
18calm
28calm
38calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 48 min at the start of September to 11 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 66 minutes over September. Sunrise moves from 5:17 AM to 5:40 AM, and sunset from 6:05 PM to 5:21 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.85:176:05
212.85:186:04
312.75:196:02
412.75:206:01
512.65:215:59
612.65:215:58
712.65:225:56
812.55:235:55
912.55:245:53
1012.55:245:52
1112.45:255:50
1212.45:265:49
1312.35:275:47
1412.35:285:46
1512.35:285:44
1612.25:295:42
1712.25:305:41
1812.15:315:39
1912.15:325:38
2012.15:325:36
2112.05:335:35
2212.05:345:33
2312.05:355:32
2411.95:355:30
2511.95:365:29
2611.85:375:27
2711.85:385:26
2811.85:395:24
2911.75:405:23
3011.75:405:21

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.6 kWh/m².

For context, solar energy here swings from a low near 2.34 kWh/m² to a high of 5.03 kWh/m² in May across the year — September's 3.6 kWh/m² falls in the middle.

012345151015202530
Solar energy (kWh/m²)Level
14.1Bright
24.1Bright
34.0Bright
44.0Bright
54.0Moderate
63.9Moderate
73.9Moderate
83.9Moderate
93.8Moderate
103.8Moderate
113.8Moderate
123.7Moderate
133.7Moderate
143.6Moderate
153.6Moderate
163.6Moderate
173.5Moderate
183.5Moderate
193.5Moderate
203.4Moderate
213.4Moderate
223.4Moderate
233.3Moderate
243.3Moderate
253.3Moderate
263.2Moderate
273.2Moderate
283.2Moderate
293.1Moderate
303.1Moderate
Planning a trip in September

Hazard calendar for Ogikubo

In seasonPeak

In September, Ogikubo sits inside its pacific typhoon season. The full year is below, with each hazard's peak months called out.

Ogikubo sits in the Pacific typhoon belt; the season peaks July–October.

Pacific typhoon
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is September a good time to visit Ogikubo?

Our two travel scores rate September for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

5.5
Sightseeing
3rd-best month of the year
5.5
Beach & pool
3rd-best month of the year

September is a reasonable time to visit Ogikubo for sightseeing.

What to pack for Ogikubo in September

From September's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In September, Ogikubo sees daytime highs around 26°C and nights near 20°C. Pack rain gear. Worth having: light clothes. About 15 days see rain.

rain gearlight clothes

Sea temperature near Ogikubo in September

The nearest coast averages about 25°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 24 km away) is warmest in August at about 26°C and coldest in February near 13°C.

It's comfortable for a long swim from Jun 7 to Nov 3 — about 4.9 months when the water holds above 20°C.

10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan14Bracing
Feb13Bracing
Mar13Bracing
Apr15Cool
May18Cool
Jun21Refreshing
Jul23Refreshing
Aug26Warm
Sep25Warm
Oct22Refreshing
Nov19Cool
Dec16Cool

UV index in Ogikubo in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Ogikubo peaks around July 20 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highModerateJul 20UV 10Jan 1UV 2
UV index (midday)Level
Jan2Moderate
Feb4Moderate
Mar4Moderate
Apr7High
May8Very high
Jun9Very high
Jul10Very high
Aug10Very high
Sep9Very high
Oct6High
Nov3Moderate
Dec2Moderate

Air quality in Ogikubo in September

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where September falls, not just the annual average.

Air quality in Ogikubo is worst in April — around 26 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (December, 14 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateApr 1426 µg/m³Dec 1814 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb21Moderate
Mar25Moderate
Apr26Moderate
May24Moderate
Jun20Moderate
Jul17Moderate
Aug16Moderate
Sep16Moderate
Oct16Moderate
Nov16Moderate
Dec14Moderate
Location & terrain

Where is Ogikubo?

Ogikubo sits at 35.7°N, 139.6°E, 44 m above sea level, in Japan. The nearest listed city is Asagaya-minami, 1.0 km away.

Topography around Ogikubo

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Ogikubo.

Within 3 km, the terrain around Ogikubo has only modest variations in elevation — a maximum elevation change of 40 m around an average of 48 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 168 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,250 m.

The land around Ogikubo is covered by artificial surfaces (93%) within 3 km, artificial surfaces (84%) within 16 km, and trees (40%) and artificial surfaces (27%) within 80 km.

3 km
40 m
16 km
168 m
80 km
2,250 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Asagaya-minami 1.0 km · Asagayakita 2.0 km · Shimoigusa 3.0 km · Eifuku 3.0 km · Kamiigusa 3.0 km · Saginomiya 3.0 km · Igusa 3.0 km · Inokashira 4.0 km

Japan travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type A / B
100 V · 50 / 60 Hz
Prices
≈ 65% of US
price level, 2025
GDP per capita
$35,951
2025
Happiness
6.1 / 10
World Happiness, 2025
Safe drinking water
99%
of population, 2024
Homicide rate
0.2
per 100k, 2023
Road deaths
3.6
per 100k/yr, 2019
Income group
High
World Bank
English
Very low
EF EPI 446
Religion
Shintoism 49%Buddhism 46%other 4%Christianity 1%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Ogikubo (35.6982°, 139.6237°, elevation 44 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).